FQDL70 DWHA 230300

 

weather and sea bulletin for north- and baltic sea

issued by marine weather service hamburg

23.09.2026, 0300 UTC:



general synoptic situation:

A low-pressure system 1008 over Belarus is deepening. A 

high-pressure system 1028 over southern Germany is weakening. A 

low-pressure system 1021 over Scotland is moving towards Denmark 

whilst deepening. A trough is extending to Hungary. A 

high-pressure system 1032 south-west of Ireland is moving towards

the English Channel whilst weakening. A ridge extends to the 

south of Iceland and is turning towards the Norwegian Sea. A 

large, severe storm system 958 will reach the area south-west of 

Iceland on Thursday.



Forecast Wednesday:

German Bight:

wind: first light and variable winds, for a time southwest about 

4, later increasing about 7 and shifting northwest, gusts 10.

visibility/weather: thunderstorms with poor visibility.

sea: later 3 meter.

Southwestern North Sea:

wind: south to southwest about 4, later shifting northwest to 

north and increasing about 6.

visibility/weather: for a time thunderstorms with poor 

visibility.

sea: increasing 3 meter.

Fischer:

wind: first light and variable winds, for a time southwest about 

4, later northwest 7 to 8 with gusts 11.

visibility/weather: shower with very poor visibility.

sea: later 4 meter.

Skagerrak:

wind: southwest about 3, shifting south, later locally 5.

visibility/weather: first fog patches, later shower with poor 

visibility.

sea: increasing 1 meter.

Kattegat:

wind: southwest 3, shifting south, increasing about 4.

visibility/weather: first fog patches, later rain with moderate 

visibility.

sea: later 0,5 meter.

Belts and Sound:

wind: light and variable winds, later southerly winds 4.

visibility/weather: first fog patches, later rain with moderate 

visibility.

sea: below 0,5 meter.

Western Baltic:

wind: light and variable winds, shifting southwest, increasing 

about 5.

visibility/weather: first fog patches, later rain with moderate 

visibility.

sea: later 1 meter.

Southern Baltic:

wind: north about 3, shifting slowly southwest.

visibility/weather: later rain with moderate visibility.

sea: eastern part first 1 meter.

Southeastern Baltic:

wind: north 4 to 5, shifting slowly northwest, western part 

abating.

visibility/weather: good visibility.

sea: first 2 meter.



Forecast Thursday:

German Bight:

wind: north to northwest about 7, gusts 10, decreasing 4, 

shifting west later.

visibility/weather: first thunderstorms with poor visibility.

sea: 4 meter, later 1,5 meter.

Southwestern North Sea:

wind: first north about 6, for a time abating, later south to 

southwest about 4.

visibility/weather: in the night coastal fog patches.

sea: first 3 meter.

Fischer:

wind: north to northwest 7 to 8, gusts 11, decreasing 4, shifting

west later.

visibility/weather: eastern part first shower with poor 

visibility.

sea: 5 meter, later 1,5 meter.

Skagerrak:

wind: first southerly winds about 4, otherwise light and variable

winds.

visibility/weather: first shower with poor visibility, later fog 

patches.

sea: western part for a time 2 meter.

Kattegat:

wind: first southerly winds about 4, otherwise light and variable

winds.

visibility/weather: at times shower with poor visibility, later 

fog patches.

sea: at times 0,5 meter.

Belts and Sound:

wind: southwesterly winds about 4, shifting fast northwest, later

abating.

visibility/weather: first rain with poor visibility, later fog 

patches.

sea: 0,5 meter.

Western Baltic:

wind: southwest about 5, shifting fast northwest.

visibility/weather: first rain with moderate visibility, later 

fog patches.

sea: 1 meter.

Southern Baltic:

wind: light and variable winds, later northwest about 4.

visibility/weather: first rain with moderate visibility, later 

coastal fog patches.

sea: 1 meter.

Southeastern Baltic:

wind: westerly winds about 3, increasing about 4.

visibility/weather: good visibility.

sea: 1,5 meter.